Violent clashes between supporters and opponents of Egyptian President Mohamed Morsi have led to at least one death and scores of injuries in the Nile Delta city of Mansoura, Egyptian state television reported Wednesday evening.

Egyptian police have used teargas in an attempt to disperse the clashes, in which at least one person was killed and 225 injured, according to a health ministry source.

Khaled El-Khatib, head of the ministry's department for emergency and urgent treatment, said the victim – named Abdel-Hamid Sadek – had succumbed to chest and abdominal injuries after having been shot with birdshot.

According to reports on state television, birdshot, bladed weapons and petrol bombs have been used in the violence. Electricity was also cut in the area in what might have been an attempt by the authorities to end the violence.